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Suddenly slow download speeds

Hi all. Apologies for the long message.

I've had M200 broadband with VM Hub 3.0 for around 3 months. Right from the start, the engineer setup the SSID as VMXXXXXXX, with no mention of the separate SSIDs VMXXXXXXX-2.4G or VMXXXXXXX-5G. No password has ever been entered for the separate frequency SSIDs and we've always been connected to the base VMXXXXXXX one. I've been really happy with the service until recently.

I've checked the download speed intermittently, as one of my neighbours has had issues with VM download speeds. For 2 and a half months, the occasional checks I've done on speedtest.net has shown I've been on over 200 mbps. Again, I've never been connected to the separate 5G or 2.4G frequency SSIDs.

In the last couple of weeks I've noticed videos buffering more. When I checked the wired and wireless download speeds, both were around the 60 mbps speed, even at quieter times of day and with nothing much connected to the network. This was not the case for the first 2 and a half months, and no new devices have been added or settings changed.

When I rang VM yesterday, they said I needed to connect to the 5G frequency SSID. When I entered the password, as I'd never connected to that SSID, it improved the speed back to what it should be. I didn't think much of it at the time, as it seemed to sort out the issue. However, I've never had to connect to this SSID before to get the quoted speeds. I've noted on the VM website that the VM Hub 3.0 that I have should switch automatically between the 2.4G and 5G frequency networks. This doesn't seem to happen on my setup.

When I now connect back to the standard VMXXXXXXX network, even if I'm sat right in front of the router, it still only displays 60 mbps. This was not the case until a couple of weeks ago.

Normally this wouldn't be an issue, but my printer will not connect to the 5G SSID network, so whenever I try to print something, I'm normally on a different network and it doesn't see the printer.

Also, even though I've added the 5G SSID network as my preferred connection on my  laptop, it doesn't automatically switch back to the 5G SSID network if I've gone out of range, making it automatically switch to the 2.4G SSID network. This is also the case for Apple devices, where I've forced the connection to go for the 5G SSID network a few times, which should make it the preferred network.

The problem I now have is that it seems like I'm permanently connected to the 2.4G frequency, after I have gone out of the 5G range, without it ever switching back to the 5G frequency, so my speeds are poor.

The original VMXXXXXXX SSID now seems to only offer 2.4G frequency, even though I've changed nothing in the settings. As I say, this was never the case for the first 2 and a half months.

I would appreciate any help the community can provide.

Thanks in advance.

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Re: Suddenly slow download speeds

Hi Simon38,

 

Thanks for posting and welcome to our community 🙂

 

Sorry to hear you've had some trouble with slow speeds, you're right in what you're saying- it should automatically switch between the 2Ghz and the 5Ghz depending on which is the best signal 🙂

 

Looking at your account and can see there are a lot of WiFi devices connected- are any of these able to be moved to an Ethernet connection?

 

Switching the devices WiFi off then back on again should nudge it to connect to the stronger connection also. 

 

Alex_Rm

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Re: Suddenly slow download speeds

Hi Alex,

Thanks for the message.

I've already got my Sky Q box, PS4 and TV connected via ethernet, so it's mainly the mobile devices that are connected to wifi, or the ones that are used rarely.

I still don't understand how I've been on the base SSID (without -2.4G or -5G) for two and a half months and had 200+ mbps, but now it won't get anywhere near it, only if I go on the -5G one. As I say, I've never logged on to that before, so it wasn't automatically switching in the past.

I'm at a point now where we seem to end up on the -2.4 ghz one and the kids iPads keep buffering. They don't understand how to switch between networks, and to be honest, I don't think we should have to do that manually.

Does the base SSID offer both frequencies and automatic switching?

Whilst my old old BT home hub was far from perfect, it did switch between the frequencies seamlessly.

It's getting really frustrating as this seems to be a step back from what we've had for the last two and a half months, and dare I say it, the limited BT service we had.

Simon

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Re: Suddenly slow download speeds

Could you access your router using http://192.168.0.1/ or http://192.168.100.1 for modem mode . You shouldn't need log in, select the 'Check Router Status' option and paste your 'Downstream', 'Upstream', and 'Network Log' tabs?

We can have a look for any oddities in the stats.

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Re: Suddenly slow download speeds


@Simon38 wrote:

Hi Alex,

Thanks for the message.

I've already got my Sky Q box, PS4 and TV connected via ethernet, so it's mainly the mobile devices that are connected to wifi, or the ones that are used rarely.

I still don't understand how I've been on the base SSID (without -2.4G or -5G) for two and a half months and had 200+ mbps, but now it won't get anywhere near it, only if I go on the -5G one. As I say, I've never logged on to that before, so it wasn't automatically switching in the past.

I'm at a point now where we seem to end up on the -2.4 ghz one and the kids iPads keep buffering. They don't understand how to switch between networks, and to be honest, I don't think we should have to do that manually.

Does the base SSID offer both frequencies and automatic switching?

Whilst my old old BT home hub was far from perfect, it did switch between the frequencies seamlessly.

It's getting really frustrating as this seems to be a step back from what we've had for the last two and a half months, and dare I say it, the limited BT service we had.

Simon


It does and in a lot of cases it causes problems.

Lots of people do this ...

You may be as well refining your Wi-Fi management, it will certainly help keeping track of your Wi-Fi frequencies.

Best done with a cable connected device.

Instructions for Hub 3

Log in to the Hub.

Advanced Settings > Wireless Signal > click ‘Disable Channel Optimization’ > Click ‘Apply Changes’.

Advanced Settings > Wireless > Security > Add 2 to the 2.4GHz Channel name > Add 5 to the 5 GHz Channel name > Click ‘Apply Changes’

You can leave the passwords the same as they are. 

Log out of the Hub.

You will need to reconnect all you Wi-Fi devices some will want to connect to 5Ghz and some to 2.4GHz and some will connect to either.

2.4GHz is a stronger signal but slower than 5GHz so if you have problems on 5GHz change to 2.4GHz.

***********************************************************************************************************************************

Mike Robinson
Aircraft Engineer & Computer Based Training and Learning Designer for many of the world's Military Arms.


My Broadband Ping - 26_Aug_2020
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Message 6 of 15
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Re: Suddenly slow download speeds

Hi Carl, please see below:-

Downstream bonded channels

Channel Frequency (Hz) Power (dBmV) SNR (dB) Modulation Channel ID

12747500000.938256 qam18
22027500001.938256 qam9
32107500001.738256 qam10
42187500001.738256 qam11
52267500001.738256 qam12
62347500001.538256 qam13
72427500001.438256 qam14
82507500001.238256 qam15
92587500001.238256 qam16
102667500001.238256 qam17
112827500000.938256 qam19
122907500000.738256 qam20
13298750000138256 qam21
143067500000.938256 qam22
15314750000138256 qam23
163227500001.238256 qam24
173307500001.238256 qam25
183707500001.438256 qam26
193787500001.238256 qam27
20386750000138256 qam28
21394750000138256 qam29
22402750000138256 qam30
234107500001.238256 qam31
24418750000138256 qam32



Downstream bonded channels

Channel Locked Status RxMER (dB) Pre RS Errors Post RS Errors

1Locked38.651112471
2Locked38.6488810669
3Locked38.649208884
4Locked38.652108525
5Locked38.655866465
6Locked38.955865971
7Locked38.656445448
8Locked38.955584546
9Locked38.655513631
10Locked38.654322914
11Locked38.652241997
12Locked38.650691393
13Locked38.648921114
14Locked38.64631536
15Locked38.64070782
16Locked38.93942203
17Locked38.63451214
18Locked38.9203459
19Locked38.618721
20Locked38.617052
21Locked38.614890
22Locked38.613870
23Locked38.913105
24Locked38.98970
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Re: Suddenly slow download speeds

Upstream bonded channels

Channel Frequency (Hz) Power (dBmV) Symbol Rate (ksps) Modulation Channel ID

1393999743.6512064 qam2
2257999833.425512064 qam4
3326000143.6512064 qam3
4461999983.6512064 qam1



Upstream bonded channels

Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts

1ATDMA0000
2ATDMA0000
3ATDMA0000
4ATDMA0000
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Re: Suddenly slow download speeds

The MAC address is the same one for all log messages below:-

 

Network Log

Time Priority Description

20/08/2020 20:37:9noticeLAN login Success;
20/08/2020 20:36:49Warning!LAN login FAILED : Incorrect Username / Password / ConnectionType;
20/08/2020 19:41:28ErrorDHCP RENEW sent - No response for IPv4;
20/08/2020 17:27:36noticeLAN login Success;
20/08/2020 09:11:15criticalNo Ranging Response received - T3 time-out;
20/08/2020 03:56:28ErrorDHCP RENEW sent - No response for IPv4;
19/08/2020 18:46:12Warning!RCS Partial Service;
19/08/2020 13:04:10criticalNo Ranging Response received - T3 time-out;
18/08/2020 23:58:22Warning!RCS Partial Service;
18/08/2020 19:44:9criticalNo Ranging Response received - T3 time-out;
17/08/2020 21:47:18Warning!RCS Partial Service;
17/08/2020 18:24:49noticeLAN login Success;
16/08/2020 19:39:39Warning!RCS Partial Service;
16/08/2020 03:18:18criticalNo Ranging Response received - T3 time-out;
15/08/2020 09:02:56Warning!RCS Partial Service;
01/01/1970 00:01:31criticalNo Ranging Response received - T3 time-out;
15/08/2020 06:41:32Warning!RCS Partial Service;
15/08/2020 06:18:26criticalSYNC Timing Synchronization failure - Loss of Sync;
15/08/2020 04:57:44Warning!RCS Partial Service;
15/08/2020 04:56:4criticalSYNC Timing Synchronization failure - Loss of Sync;
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Message 9 of 15
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Re: Suddenly slow download speeds

Your stats look ok.

A number of errors on each channel but could be considered 'normal' depending on how long your HUB has been on since the last reboot.

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Re: Suddenly slow download speeds

Thanks Mike. I'll try this.

I still don't understand what's changed, as all of my connected devices have worked perfectly for the last two and a half months. Even if I disconnect all of the other devices and sit in front of the router with one device, it will not switch to 5G speeds on the base SSID one.

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